[Antibody-dependent adherence of peritoneal cells of the rat to Trichinella spiralis larvae].

Washed peritoneal exudate cells from normal Rats firmly adhere to Trichinella spiralis larvae in the presence of serum containing anti-Trichinella antibodies. This effect is observed when muscle larvae, cells and dilutions of anti-sera are incubated for 1 hr. at 37 degrees C. No adherence takes place at 4 degrees C. Whole serum or its gammaglobulin fraction are active and effect is inhibited by the addition of Trichinella antigens. Complement is not essential since antiserum heated for 2 hrs. at 56 degrees C is active. Washed cells from infested animals do not adhere to the larvae in the absence of antiserum.